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Am J Psychiatry 1993; 150:1408-1410
Copyright © 1993 by American Psychiatric Association


REGULAR ARTICLES

Elevated CSF levels of interleukin-2 in neuroleptic-free schizophrenic patients

J Licinio, JP Seibyl, M Altemus, DS Charney and JH Krystal
Department of Psychiatry, Yale University School of Medicine, West Haven Veterans Affairs Medical Center, CT 06516.

Levels of CSF fluid interleukin-2, but not interleukin-1 alpha, were found to be higher in 10 neuroleptic-free schizophrenic patients than in 10 healthy subjects matched for sex and age. Because interleukin-2 increases dopaminergic neurotransmission and participates in autoimmunity and cell growth, the authors postulate that elevated levels of central interleukin-2 might contribute to the increased dopaminergic neurotransmission, autoimmune phenomena, and abnormal brain morphology described in some patients with schizophrenia.


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